electric circuits

• A circuit is simply a closed loop through which charges can continuously move.
• Series Circuit

  • It is a circuit where the bulbs are connected in one path. If one of the bulbs is busted or removed, the remaining light bulbs will not light up anymore.
• Parallel Circuit

  • It is a circuit where the bulbs are connected in two or more pathways. If one of the bulbs is busted or removed, theremaining light bulbs will still light up.
• Circuit breakers

  • Breakers are installed in an electrical panel (breaker box).
  • The breaker will monitor the circuit and in the event of a complication such as an overload, the breaker will immediately shut off that circuit.
• fuses

  • The fuse breaks the circuit if a fault in an appliance causes too much current to flow.
  • This protects the wiring and the appliance if something goes wrong.
• earthing

  • It is used to protect you from an electric shock.
  • It prevents damage to electrical appliances and devices by preventing excessive current from running through the circuit.
• double insulation

  • All the electrical wiring in a house is insulated by a layer of rubber or plastic so that the bare wire is not exposed.
  • In many of these appliances there is another second layer of insulation as a buffer in case the first layer fails.
• residual current device

  • The device is used to detect if any current flows from the circuit to the earth through a person and then break the circuit to stop the current flowing before it causes any electric shock.
• An inverter is a device that controls the frequency of the incoming electrical current that goes to the appliance, thus consuming less electricity.